The 50 companies percentages of revenues spent on R&D are described below. The mean and standard deviation
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Question:
The 50 companies’ percentages of revenues spent on R&D are described below. The mean and standard deviation of these data (rounded) are 8.49 and 1.98, respectively. Calculate the fraction of these measurements that lie within the intervals x±s, x±2s, and x±3s.
Related Book For
Statistics For Business And Economics
ISBN: 9781292227085
13th Global Edition
Authors: Terry Sincich James Mcclave, P. George Benson
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